Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers
With the continuous increase of the upper limit of coal mining, in mining areas near unconsolidated layers, water and sand inrush disasters occur from time to time, seriously threatening the safety of mine production. In this paper, the process of water and sand inrush accidents induced by mining ne...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2020/6644849 |
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| _version_ | 1832566379418484736 |
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| author | Guibin Zhang Wenquan Zhang Hailong Wang Siwen Cao Yuliang Wu Zaiyong Wang |
| author_facet | Guibin Zhang Wenquan Zhang Hailong Wang Siwen Cao Yuliang Wu Zaiyong Wang |
| author_sort | Guibin Zhang |
| collection | DOAJ |
| description | With the continuous increase of the upper limit of coal mining, in mining areas near unconsolidated layers, water and sand inrush disasters occur from time to time, seriously threatening the safety of mine production. In this paper, the process of water and sand inrush accidents induced by mining near unconsolidated layers is analyzed using mechanical analysis and numerical simulation methods, based on the principle of silo unloading and arching and combined with actual water and sand inrush characteristics; the critical water and sand inrush arching mechanism is explained. The paper also proposed and established three critical arching mechanics models (interlocking arch, bonded arch, and transition arch), deduced the mathematical expression of interlocking arch and transition arch, and obtained the critical instability conditions of the arch and its influencing factors. The research results have guiding significance for the occurrence of water and sand inrush disasters and the judgment of the degree of damage in mining near unconsolidated layers. |
| format | Article |
| id | doaj-art-f525b942ef5948e3aff1f18315a198c0 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-f525b942ef5948e3aff1f18315a198c02025-02-03T01:04:24ZengWileyGeofluids1468-81151468-81232020-01-01202010.1155/2020/66448496644849Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated LayersGuibin Zhang0Wenquan Zhang1Hailong Wang2Siwen Cao3Yuliang Wu4Zaiyong Wang5School of Civil Engineering and Architecture, Linyi University, Linyi 276000, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaSchool of Civil Engineering and Architecture, Linyi University, Linyi 276000, ChinaYangcun Coal Mine, Yanzhou Coal Mining Company Limited, Zhoucheng 272118, ChinaBaodian Coal Mine, Yanzhou Coal Mining Company Limited, Yanzhou 273513, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaWith the continuous increase of the upper limit of coal mining, in mining areas near unconsolidated layers, water and sand inrush disasters occur from time to time, seriously threatening the safety of mine production. In this paper, the process of water and sand inrush accidents induced by mining near unconsolidated layers is analyzed using mechanical analysis and numerical simulation methods, based on the principle of silo unloading and arching and combined with actual water and sand inrush characteristics; the critical water and sand inrush arching mechanism is explained. The paper also proposed and established three critical arching mechanics models (interlocking arch, bonded arch, and transition arch), deduced the mathematical expression of interlocking arch and transition arch, and obtained the critical instability conditions of the arch and its influencing factors. The research results have guiding significance for the occurrence of water and sand inrush disasters and the judgment of the degree of damage in mining near unconsolidated layers.http://dx.doi.org/10.1155/2020/6644849 |
| spellingShingle | Guibin Zhang Wenquan Zhang Hailong Wang Siwen Cao Yuliang Wu Zaiyong Wang Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers Geofluids |
| title | Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers |
| title_full | Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers |
| title_fullStr | Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers |
| title_full_unstemmed | Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers |
| title_short | Research on Arch Model and Numerical Simulation of Critical Water and Sand Inrush in Coal Mine near Unconsolidated Layers |
| title_sort | research on arch model and numerical simulation of critical water and sand inrush in coal mine near unconsolidated layers |
| url | http://dx.doi.org/10.1155/2020/6644849 |
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